Creating a Smart Home Device Group for each room may help you get closer to what you're looking for. An Echo device can only be added to one smart home group at a time, so when standing in the living room you could say "Turn on living room" or "Lights on" to control devices only in that group/room.

Thanks for the reply. I already have groups set up but I can still control any device from both echos. I'll try renaming one plug to lamp 2 and see if it helps. Is there any way to make the grouped devices only controllable by the echo in the same group?